When is the best time to use mineral source potassium fulvic acid?

Everyone knows that humic acid is the remains of animals and plants, a type of organic substance that has been decomposed and transformed by microorganisms for tens of millions of years. It contains benzene rings, condensed rings and certain heterocycles (such as pyrrole, furan, indole, etc.) The aromatic rings are connected by bridges, and there are various functional groups on the aromatic rings, mainly the basic structure of humic acid macromolecules such as carboxyl, phenolic, hydroxyl, methoxyl, and quinone groups. The appearance is black flakes or black Powder crystal.

And fulvic acid is the part of humic acid that is soluble in water, alkali or dilute acid, and it is also a part of humic acid with a relatively small molecular weight. Wechat search vegetable farmers pay attention to it. The molecular weight of fulvic acid is relatively small, generally between 300 and 500. Crops can absorb it directly, while humic acid generally has a molecular weight of hundreds of thousands to millions, and must be decomposed into small molecules by microorganisms before it can be absorbed.

1. What is mineral source potassium fulvic acid

So why is it called mineral fulvic acid? In fact, what we have mentioned above are mineral-sourced fulvic acid. The reason why we specifically indicate "mineral source" is to distinguish biochemical fulvic acid:

Biochemical potassium fulvic acid is mainly made of leftovers such as sugarcane and sugar beet. It looks like brown sugar powder, contains polysaccharides and proteins, and melts when exposed to the wind. It tastes sweet and brown sugar, and its effect is 10 times lower than that of mineral source potassium fulvic acid. Above, so the dosage is generally large, and the PH value of biochemical potassium fulvic acid is acidic, too much application is easy to acidify the soil, so it is not recommended to use too much.

2. What is the function of mineral source potassium fulvic acid

1. Potassium fulvic acid from mineral sources: Potassium fulvic acid from mineral sources usually contains more than 50% fulvic acid, more than 12% potassium oxide, and a pH value of 9-11. In practical applications, the technical indicators of each manufacturer are different. Wechat search vegetable farmers The circle is concerned that the product belongs to small molecular organic matter, which can be directly absorbed and utilized by crops, and the effect is fast and long-lasting.

2. Decompose salt accumulation and improve root microenvironment: Potassium fulvic acid has strong adsorption and ion exchange capacity, which is 10-20 times greater than that of ordinary soil, and can exchange and adsorb salt ions in the soil, neutralize and buffer saline-alkali harm, and flocculate with the soil particle structure to become a stable small fertilizer storehouse for water retention, fertilizer retention and ventilation.

3. Reuse of nutrients for chelated soil solidification: Mineral-source potassium fulvic acid chelates medium and trace elements such as calcium, magnesium, zinc, and molybdenum in the soil to generate calcium and zinc humates with high solubility and easy absorption by crops. It can also complex with soil immobilized phosphorus and immobilized potassium, and decompose phosphorus and potassium, which is indispensable for improving disease resistance, stress resistance, increasing yield, and improving quality.

In addition, mineral-sourced potassium fulvic acid participates in the synthesis of various enzymes, increases drought and cold resistance, promotes root growth, and promotes soil microbial activity and other functions.

3. How to use mineral source potassium fulvic acid

There are two kinds of our common finished products: one is refined products, usually packaged in 1 kg, the price is higher, the water solubility is good, the anti-flocculation ability is good, and it can be mixed with most fertilizers, suitable for drip irrigation and flushing, WeChat search vegetable farmers circle focus on. The other is common mineral source potassium humate, which is mostly in the form of large flakes, and the price is relatively low. Most of them are in large packages of 5-10 kg. If there is less water, it will not be opened. It takes five or six hundred catties of water to melt a bag. It is recommended Water after spreading.

It is advisable to use it no less than 3-4 times a year. Several usage periods are recommended:

1. Before flowering

The flowering and fruit setting period needs to consume a lot of nutrients. Insufficient nutrients are prone to flower drop and bud drop. During the flowering period, it is generally not recommended to water more, which is prone to poor fruit setting. Then we need to supplement nutrients before flowering to let the crops spend the entire flowering period safely. Usually we recommend Supplement high phosphorus water-soluble fertilizer and mineral source potassium fulvic acid before flowering.

2. Young fruit expansion stage

The reason is the same as above, the period of young fruit expansion is the fastest period of cell division, which requires a lot of nutrients. When we use balanced macronutrients, we also need to cooperate with the mineral source of potassium fulvic acid.

3. After fruit trees are bagged, before continuous high temperature in summer

During this period of time, the mineral-sourced potassium fulvate is used. One is to allow the potassium fulvate to continuously chelate and supply nutrients to the crops and continue to expand in the bag. There is another important reason: drought resistance! Potassium fulvic acid from mineral sources flocculates in the soil and becomes a cementing agent, which combines with soil particles to form a soil complex such as humate, which becomes a water-stable aggregate structure, thereby greatly improving the soil's air permeability and aeration, oxidation and Reduction, water permeability and water retention, fertilizer supply and fertilizer retention performance, improved soil water, fertilizer, air and heat conditions; greatly improved the effectiveness of soil nutrients, forming a small reservoir and a small fertilizer reservoir to cope with continuous high temperature and drought in summer .

4. Before coloring

When the crops enter the veraison period, the leaves, branches, and root systems are exhausted: aging, yellowing, and serious degradation. In particular, the absorption capacity of the root system decreases, and at this time the fruit coloring requires a large amount of nutrients, not only to supply the fruit, but also to supply the flower buds. It is recommended to use high-potassium macronutrient water-soluble fertilizers, combined with the use of mineral-sourced potassium fulvic acid, both The fast and long-lasting effect prevents fat loss in the later stage, and avoids fat loss such as turning green and soft grains.

At this time, fertilization is very critical. For example, for citrus and grapes with a long period of color change, it is easy to lose fertilizer in the late stage of maturity. The main reason is that the nutrient accumulation of branches in the early stage is insufficient, and the fertilizer effect of flushing fertilization is short, and it is not suitable for frequent watering in the later stage. What's more, in some places, water cannot be poured, which leads to broken chain of nutrient supply and defertilization. This time, the use of mineral source potassium fulvic acid should be used in an increased amount, and a continuous and sufficient supply of nutrients required for fruit coloring can be used for good color and sweetness. High degree, good taste.